Three-way clamp



' c. KNITTEL AND N KESSLERING.

THREE-WA-Y CLAMP.

APPLlCATiON FILED 0CT.6,1919.

1,409, 21,, Patnted ian, 3, 1922,

2 SHEETS-SHEET 1- W/T/VEJJES ;-Fi .sismed v wof Fig.f1. s t 4' sectional} I fore not drawn-i to scales-m 25 7 L plication of our invention.

5 Fig. 4v isflztdetaillfi igmentary View and Fig.1 5 isa horizontal section "taken i on line 5 -5 of Fi'ggf l, withthe pai'tsi ifepffif t bAfZEL-KNjIITTE mnmcnemes xsssmemegeeQnmcy, iLLIno'I sL following is a n specification.

' This invention-relatesjtonewinand nsefiil improvements'in;clamps and has for its object topi'ovide a simple andimpr0vedf0rm] of clz unp especially adapted forvholding a corner: ]OlIlt, a mitre jointyan edgebztnd or i i'whi'letheiclemping screwsztre' screwed up into clampinglpositionf A a pmgpntej '21 ,isff swiveledj "as? at*22, to "the {oleniping l;

in making a pilastel etc. i 3

' With the forego ng a iew that will appear asthe na'tnreof the invention is better I understood, the same].

, consists in theinovelq feat ii es of construci tion, combination and aimngementof parts" illustrated in the drawingsend inorepartic ularly pointed out in theappended; claim;

- In thefac compa nying drewings'whichlste,

"for illustrative purposes only, are there- Fig." l is a side view, ill

Fig.2is a top plan vlew-of resented on an enlarged scale." H

Referringto-thefldmwingsfor aimoreparl .t ticuler descriptioni'oftheXjinVentiOn and which drawingsflike parts fare designatedj; l by like reference cha ractersthroughout the severalflviews, the numeral l' designates the clanip, asia whole, whichcomprises thefupp'erg relatively stationary section 2 and the lower 3 adjustable section 3,} Section-2 of the clamp is formed" with a horizontal portionpro' lfl vided at its outer" end with atnbulaf bear i 1' h1g5 which is interiorlyythreaded; for screw threaded [engagement with;;.the"j clamping; screw 6, to the innerend of whichis swiv'eled, f as at 7 ,1 the fiat'ela mpingf plate 8, which? engages "theouter edge of; oneof the parts o rlsections, as 9, of-thework, v @Said section 2 is s also formed with a llonger depending .right angularlyJdisposed1egp0rti0n 10 the i upper end ofwhichis provided with aftubu ii lar bearing '11-, which is int'ei'io rly threaded fan -screw threaded i engztgement with the clamping screw 12,to the inner end'ofwhich is also swiveled as" at 13, the fiat clamping i V plate 14, whichgengeges the fonter edge of Tannin-we? end 25,

the work "until "the clamping screw screwed into clamping position. 7 1 4 clamp comprises inner tubulerflbearing threaded engagement with clamping screw receivesthe leg portion 10 of relativelysty "118,2L1 Center-guide po1 tion ff 19; which isfof a L l hollowlj substantially fectangnlar form and ":"tionary section 2 ofthe clamp and an intermediate; Work engaging portion; 20 which;

engegestthelbottom ledge of section or; m 1: I

15 of the workand holds the "same in place section orjpnrt .9 of the work? The outer? are, equippe'diwithjthe thumb "nuts 235 2 V will be "apparent. in 'One inner end i V i I ii'portion the edjustableclamp Section, ustm'tingih 3-1 S I d w th 'a'seriesof il Q inedteeth 1 v' fy27 ,forl holdingithe latter in placeuagainstfl 1 With theuse- 0fourimprove'd clainp,

espectivel-y, theypnrposefof iwhiehfi l sure can be quicldyapplied]v against Qthef i work f itomfthree difl'erent-fdirections and 1 f 1 both-piecesof the work'clampedet the samef l time "without" the: use} of any gvblocksl J In t' Y the oldQmethOdflof,epplyinglyen dgeybai d on a, flat piece of work, *ztmimb er ofblocks I. are; gluedv'onzplflat surfaceand then other 9 blocksgluedontheedge bandandthen hand Q;

clamped; zAfter the'glue isfset', these blocks]; a

necessarily have to" be 'emoyedend the stir-.

face sandpapered over again to" remove the marks;offthe blocks;*With thegnse ofo'ui t improved clam such geXpenditui e of time; 'T ancl'laboris obviated, as will-lbs apparent; fAn important 5 feature of our improved clamp is n the work engeging'fportion of the," adju stable ;clamp" section 3, whiehfholdspne; 1

piecefof worksquarelyrxin place until-the 'm' clamping screws are sci'ewedup into clamp- 1' l 1 q v foregoing"descriptiontaken in V connection with the drawings; it is thought; v that the" construction, operation advanf "ta ges of-Joni: invention will be' readily 'u'nder jstoodiwitholit requiring a more'extended exing position.

From the plsnationi i Having qscri edlouri v n hetfiwe 7 claim as new and desire to secure by Letters A Patent, is

' en a n one member of: the stationar 1 sec D I A A clamp "of the charaoten speoifiecLoon1- ,rprising a relatively stationary section of right-angled form, and adjustable clamp; section comprising a guide portionslidably ti'on and zt'tvork engaging portion adapted f'to fit against one piece of the 'tvork'and hold: the same squarely in position, two

directly "opposed clamping screws Working 7 through the stationary andedjnstable clamp ,Of the tures.

sections ztnd engaging opposite edges of one piece of the work, a third clamping screw Working through the; ;stationary clamp section at right angles to said first mentioned. screws and engaging the other piece of the work ind teeth formed 0i'l ti1-i11n6l -W2t11 guide portionof the adjustable clamp 

